Due to increased piston stroke, they managed to get the displacement of 1.6 liters. (mywikimotors.com)
Cylinder diameter has remained the same (93 mm), but piston stroke diminished to 76 mm. (mywikimotors.com)
To help generate the strong low - end torque customers expect in a truck, it was designed with a long piston stroke of 4.01 inches (102 mm), which is the distance the piston travels up and down within the cylinder. (cheersandgears.com)